Tile-coating machine.



P. E. GOLDSMITH.

TILE COATING MACHINE. APPLIOA'IIOII 1-11.21: JUL! so. was.

948,01 1 Patented Feb. 1, 1910.

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F. B. GOLDSMITH. ms comm mmnmn. LIPLIOL'I'IOK FILED JULY 26. 1808. 948,01 1 Patented Feb. 1, 1910.

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Witnma P. E. GOLDSMITH.

TILE COATING KAGHIHE.

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Patented Feb. 1, 1910.

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UNITED STA1LI PATENT OFFICE.

FREDERICK E. GOLDSMITH, F HIDDLETOWK, OHIO, ASSIGNOB. TO THE CERAMIC MACHINERY COMPANY, OF HAMILTON. OHIO.

TILE-GOATZN G MACHINE.

Specification of Letters Patent.

Patented Feb. 1, 1910.

To all wkmn it may concern:

Be it known that I, FREDERICK E. Gom- T porting the delivery end of the belt 6 and constituting a driving snrra, a citizen of the United States, and a E resident of Middletown. in the county of Butler and State of Ohio, have invented a Machine, of

new and useful Tile-Coating which the following is a specification.

The general object of the invention is to provide mechanical means for rapidly and eflicientl applying coating material to objects sucas tile.

In tile making it is highly important that the biscuit, as the tile is called before being coated and fired, should have applied to it on one surface a very even and uniform deposit of coating material, and that this coating should not overrun the edges of the surface which it is desired to coat. It is also highly desirable in many cases to apply the coating material to the biscuit in such a manner that when it is fired the finished tile will show 2. spotted or mottled effect. This is convenient-1 accomplished by a )plying a coating in sue 'a way that more 0 the coating is deposited at certain points on the tile than at others. A. coating roll which serves to accomplish this result and which I term a spotting roll is, therefore, an important part of the present invention. To augment the rapidity with which the biscuit may be cost of deposition of the coating, and to secure various efi'ects in s otted or mottled tile. I have found that it IS frequently desirable to pass the biscuit over two or more coating rolls, and the provison of a plurality of such rolls in a single machine 11;, therefore. an im ortant feature of this invention.

xemplifyin structures embodying my invent-ion are i lustrafed in the accompanyin% drawing in whichigure 1 1s a side elevation of a coating machine; Fig. 2 aplan view; Fig. 3, a View of a, coating roll partly in section; and Fig. 4,11 detail view 0 a support for the spout or spouts.

Reference numeral 1 designates a main frame; 2, 11 table on top of the frame; 3, brackets, one near each side of the table; 4, roll shafts, one or more in number, jourmllcd in the brackets 3; 5, the general dcslgnotion of coutiu rolls, one on each of shafts 4; G, a feed tublh, which may be stationary,

but which more conveniently is as shown 1n the form of u belt or apron; 7, a roller suppulley for moving the belt; 8, a shaft for the roller 7, journaled in the brackets 3; it is to be understood that the other end of the on 6 is suitably carried by a roller or the lilre; 9, u carry-off belt; 10, a roller therefor adjacentto the coating roll; 1 1, a shaft for roller 10; 12, a bracket carried by the table and rovidcd with journals for shaft 11; 13, u rol or for the delivery end of belt 9 suitably mounted on the table; 14 a mam driving shaft to which power is conveyed from any suitable source; 15, a ulley thereon; 1G, a pulley on roller shaft 8, lted to the pulley 15; 17, a pulley on shaft 8; 18, a pulley on shaft of re [or 13 bolted to pulley 17; 20, cars, one on each of the roller shafts 8 an roll shafts 4; 2-1, gears interposed between each two of the gears 20; 23, a trough supported in any suitable manner below and ad aCeut to the coating rolls; this trough may be of varying shapes, but is deslrab y. as shown in the drawing, formed with curved depressions :24, conformin more or less to the shape of the rol an ralsed parts intermediate the rolls; by so sha mg the trough um fluid in it is brought m 0 use proximity to the surface of the coatrolls; 26, a pan beneath the trough; 27,

ing y a ucket mounted on the frame containing ed, to unprove the evenness and regularlty any suitable coating fluid; this bucket is preferably rcrolubly mounted and is continuously rotated while the machine is in operation by belting or gem-in 28, a reciprocublc frame havlng side ro .s 29 moving in guides 3Q on the frame, on upper cross piece 30 and a lower cross piece 31; this frame is continuously rcciprocuted, during operation of the machine, conveniently by a. pitnmn connected to cross piece 31 and to a crank or eccentric on the main shaft 14; 35, a tank for coating, carried on a pipe 36 borne by the reciprocublc frame 28; &0, any suitable pump for couvoving coating material from the bucket 27 to the tank 35, in the present instance conveniently being :1 dinplu'ugm pump borne on the lower end of pipe 36 within the burkct. J7 and operated )y tho rmriprm-ulious of fruuue 28; 4-1, :1.

, outing in u dimlmrgc opening 4-2 out of the I trough 23 and prcl'crubly above the axis of one of the coating rolls 5; in some cases u i lurulilv of scouts or discharge openings or both "my be pmvidcd, so that coating may spout leading from tho tank 353 and .(crmibe discharged over a plurality or each of the coating rolls{ the s ut or spouts 41 are preferably made flexi le to accommodate the umping movement, and are conven ently held near the discharge end 42 by a suitable bracket or other device carried by the frame in fixed relation to the trough or to the roll or rolls upon which the coati fluid is delivered, and this bracket may made adjustable to regulate the position of the spout in relation to the rolls or trough as may be desired, and as illustrated in Fig. 4:.

In operation the main shaft ll is rotated, driving through pulleys and 16 roller shaft 8, and moving the feed apron 6 toward the coating rolls. Through the train of gears 20, 21 the coatin rolls are also revolved in a left-hand irect-ion as seen in Fig. l at the same rate of speed, the carryofl" belt 9 is atthe same time driven by pulleys 17 and 18. The biscuit are placed upon apron 6, and are carried to the coating rolls, across which they pass, and are removed by the carry-ofl belt 9'. The bucket 27 is in the meantime being continuously rotated and its contents are disturbed by contact with parts of the pump or by agitator blades which may be provided on the pump tube 36 if desired. This agitation is highly important in order to keep the coating material in proper consistency for use. The pump 40 is also in continuous operation forcing the coating material from the bucket into the tank 35, from which it passes through the spout 41 and discharge nozzle 42 onto one or more of the coating rolls, and into the trough 23; all of the rolls dip into the trough, and in rotatin carry up a part of the coating material, an as the biscuit pass across the rolls this coating fluid is brought into contact with the under sides of the biscuit. The plurality of rolls provided insure an even application of the coating material.

A co ions circulation of the coating material is highly desirable, and for this reason it is preferred to so 0 rate the pump that a great deal more of all; coating material is continuously delivered into trough '23 than is taken up by the biscuit. The overflow falls over the edges of the. trough and is caught by pan 26, and from the pan is redelivered into the bucket 27. Continuous and rapid circulation of the coating material is thus provided.

material in the trough suflices to come into proper contact with and supply all of the coating rolls.

Referring now to Fig. 3: 4' is a spindle for a coating roll, which may be identical with the shaft 4 on which the roll is mounted, or may be separate from and attached to said shaft; 45, annular flanges to support the coating surface of the roll; 4.6, an inner per ducc this result are in a broad sense The preferred shape of the trough 23 is such that a very small quantity of coating forated or cupped tube carried on the flanges 15; 47, an intermediate pervious surface conveniently of wire mesh; 48, an outer perforated covering for the roll, forming the coat mg surface proper which comes in contact with the biscuit; 44 spots consisting of pieces of sponge, felt, rubber, or any other suitable material, secured to the surface of the roll, conveniently by wiring through the perforations of the rol in any suitable design or arrangement-they may be separate as shown in the figure, or may be in the nature of more or less connected and regular designs.

Each of the coating rolls before referred to is desirably constructed in approximatelv the manner Just described. It will be uridelstood that the coating material which is carried in the trough adjacent to the rolls will readily flow from the pervious cover- 8 ing to the rolls, and owing to the cup-like perforations of the surface will be carried readily upward by the roll as it revolves and into contact with the biscuit. A very uniform delivery of the coating fiuid is by this means attained. If the b1scuit are intended to have a uniform coati of a single color the spots may he omitt but if a variegated or mottled surface is desired, the spots serve to carry more of the coating fluid t an the normal surface of the roll, and when thely contact with the biscuit they deposit at t ese contact points a greater amount of the fluid, and this additional deposition results, when the biscuit is fired, in produc ing a dili'erent shade or color from that of the remainder of the tile.

The tubes or roll coverings 46 and 48 may either or both convenientl be of rubber, or they may be of metal, in wliich case they are of such thickness as to yield somewhat, and of whatever material they are made it is preferred that the roll present a somewhat fielding or flexible surface to the biscuit.

the construction shown in the drawing with the outer covering 48 made of rubber underlaid by the intermediate surface 47, the desired flexible construction is attained and the inner covering 46 may sometimes be omitted. The broad idea, involved in the construction of the coating roll is to rovide a flexible or yielding contact with e tile, and the detalls of construction which prononessential.

Reference is hereby made to my copending ap lications, Serial No. 370,656, filed April 2 1907, for tile coating machine, and Serial No. 465,589, filed December 2, 1908, for machine for coating tiles, etc.

I claim:

1. In mechanism for coating tile and the like, the combination of a plurality of rolls mounted rcvolubly on axes in the same plane, a trough beneath the rolls, a main coating supply, and means for circulating coating material between the mam supply and trough so that the rolls are partially immersed in the circulating coatin materia 2. In mechanism for coating t' e and the like, the combination of a plurality of rolls mounted revolubly on axes in the same plane, a trough beneath the rolls, a mum coating supply, and means for supplying coating material continuously from the main supply to the trough in excess of the amount required for use, the trough and main supply being arranged so that surplus coating material is returned from the trough to the main supply.

3. In mechanlsm for coating tile and the like, the combination of a plurality of rolls mounted revolubly in axes in the same plane, a trough beneath the rolls, a. main coating supply, means for supplying coating material continuously from tic main supply to the trou h in such quantity that the rolls are covere above their centers and in exccss of the amount required for coating, and means for returning the excess coating to the main supply.

4. A roll or coating tile .and the hire comprising a perme'ab e cylindrical shell provided with suitably arranged projections.

5. A roll for coati tile and the like comprising a. permeab e cylindrical shell' provided with spots of absorbent material secured to its outer surface in suitable arrangement.

6. A roll for coatin tile and the like comprising a permeab e cylindrical shell provided with spots consisting of pieces of sponge secured to its outer surface in sult- 1 able arrangement.

7. A roll for coating tile and the like comprisin a shaft, circular flanges thereon, a permeab e cylindrical shell carried by the flanges and projecting spots of flexible material secured to the outer surface of the shell.

8. In mechanism for coating tile and the like, the combination of a roll revolubly mounted, a trough beneath the roll, a main coating supply, and means for circulating coating material between the main sup ly and trough so that the rolls are partia immersed in the circulating coating material:

9. In mechanism for coating tile and the like, the combination of a roll revolubly mounted, a trough beneath the roll, a main coating supply, and means for so plying coating material continuously from t e main supply to the tron h in excess of the amount required for use, t e trough and main supply being arranged so that surplus coating material is returned from the trough to the main supply.

10. In mechanism for coating tile and the like, the combination of a roll revolubly mounted, a trough beneath the roll, a main coating supply, means for supplying coatmg materla continuously from the main supply to the trough in such quantity that the rolls are covered above their centers and in excess of the amount required for coat ing, and means for returning the excess coating to the main supply.

In testimony whereof I have affixed my signature in the resence of two witnesses.

FREDE ICK E. GOLDSMITH.

\Vitnesses:

Wu. Lnvr, ALBERT DELL. 

